Motorcycle Battery Case Lateral Positioning for Storage Capacity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional motorcycle designs with a battery case integrated into the storage case face challenges in maintaining storage capacity and operability, as the battery case's placement between reinforcing frames obstructs battery replacement and inspection, and requires reduced size to avoid the rear wheel, compromising both storage capacity and workability.
Innovation Solution
The motorcycle design features a battery case extending downward from the storage case's bottom portion, positioned on the outer side of the reinforcing frames, allowing the storage case's bottom to be lowered for increased capacity while ensuring sufficient clearance from the rear wheel, thus enhancing workability and storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the battery case is disposed between the two reinforcing frames, then the frame structure is compact, but the battery replacement and inspection operations are obstructed and workability is reduced
Solution Approach 1:
The battery case is repositioned from a longitudinal arrangement (between reinforcing frames) to a lateral arrangement (outside the reinforcing frames in the width direction). This dimensional change allows the battery case to be accessed from the side rather than being obscured by the reinforcing frames, thereby improving operability while maintaining compact frame structure.
2Volume of moving object
If the battery case is disposed between the reinforcing frames, then the frame structure is compact, but the clearance to the rear wheel is insufficient requiring the battery case to be down-sized
Solution Approach 1:
The battery case is repositioned laterally outside the reinforcing frames, utilizing the width direction space rather than the longitudinal space between frames. This dimensional relocation provides adequate clearance from the rear wheel while maximizing the battery case volume, eliminating the need for downsizing.
3Volume of moving object
If the storage case bottom plate is lowered to increase storage capacity, then the storage capacity is increased, but the battery case placement becomes constrained by the reinforcing frames
Solution Approach 1:
The battery case is positioned laterally outside the reinforcing frames rather than between them, allowing the storage case bottom plate to be lowered for increased capacity without the battery case being obstructed by the reinforcing frames. The lateral positioning provides unobstructed access for battery replacement and inspection.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is provided a motorcycle which has a storage case (50) provided between a pair of seat frames (26). The storage case (50) includes a bottom plate portion, which has a first sloped bottom portion and a flat bottom portion. The first sloped bottom portion is sloped along a pair of reinforcing frames (22). The flat bottom portion may be inclined but to a lesser degree than the first sloped bottom portion, and is provided at an outer side than at least the reinforcing frame (22). The battery case (84) extends downward from the flat bottom portion of the bottom plate portion, and has a box-like shape, opening outwardly widthwise of the motorcycle. An inner bottom plate is provided inside the storage case (50), covering above the bottom plate portion. The battery case (84) located on an outer side than the reinforcing frame (22), in a width direction of the motorcycle.